Following Ben helping Grandpa Max defeat Liam, Ben takes Blukic and Driba to look for the 23rd Mr. Smoothy restaurant. After Ben, Blukic, and Driba enter the 23rd Mr. Smoothy restaurant that keeps disappearing, they find it run by Professor Blarney T. Hokestar who is using a dimensional device to move the restaurant to different dimensions. In one dimension, Ben meets an alternate version of himself who names his aliens differently and has lost his Grandpa Max.